The workover operation modes of the offshore platform without workover rig in Chinese offshore oil and gas fields are investigated, the mature workover rig relocation mode, hydraulic workover rig mode, coiled tubing workover mode and bailing electric pump mode are summarized, the applicable conditions of various technologies are demonstrated, and the technical limitations are analyzed. According to the development situation of Chinese offshore oil and gas fields, the bottleneck of workover without workover rig is to improve operation efficiency and reduce operation cost. The development trend of domestic offshore oil and gas fields is analyzed, and there will be of great progress in drilling and workover technology in the future. Through the thinking and prospect of workover technology of the platform without workover rig, the ideas of workover of the offshore platform without workover rig are sorted out, which provides reference for the development and workover of offshore platform without workover rig.